19643701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 26726400

約数和(自身を除く): 7082699

約数列:

[1, 7, 11, 19, 29, 77, 133, 203, 209, 319, 463, 551, 1463, 2233, 3241, 3857, 5093, 6061, 8797, 13427, 35651, 42427, 61579, 93989, 96767, 147697, 255113, 677369, 1033879, 1785791, 2806243, 19643701]

約数ペア:

[(1, 19643701), (7, 2806243), (11, 1785791), (19, 1033879), (29, 677369), (77, 255113), (133, 147697), (203, 96767), (209, 93989), (319, 61579), (463, 42427), (551, 35651), (1463, 13427), (2233, 8797), (3241, 6061), (3857, 5093)]